[wp-hackers] Is it safe to change users usernames ?

[Lox]

Hello,

I am working on a web site that requires that users username and email have
to be the same (users should be able to login using their email address)

So when a user changes its email address, I want that its username to
change. That part is ok, I can do it.

My question is: is it safe? Are there any possible side effects of doing it?

Regards

-- 
Lox
lox.dev at knc.nc